It can't work. Look at all the metal that coil is swinging next to. What about the sweep itself? No pinpointing at all. Then you have to follow it around holding a radio control. The reporter salted the grass with coins and they didn't even try to find them. It's a scam and don't believe it for a minute. I have for a long time asked her to show the machine beeping on a coin, pinpoint a coin and show how they retrieve the target. She first wrote me and said that they didn't have a patent and couldn't show how it worked. Then she says it's patented. So I asked her again. She said that it was too cold to film it working. I said that surely one out of those thousands of coins you caught the machine on tape. She said they haven't. I don't know if there selling something but I ain't buying.